When I select "rename" option for an iop, the popup box does not appear. I investigated it in the source code and it seems that "foucus-out-event" handler is executed immediately after the popup box is created. I have tested this on two different PCs with the same result. Both PCs run Ubuntu 18.04 with Yaru/Communitheme theme. By the way, the fast tagging (activated by Ctrl-T) has the same problem for me.